Powerful price fall of cryptocurrencies after crypto exchange hack

It is a sales mood in the crypto market after the small South Korean cryptocurrency exchange Coinrail doubted it was hacked this weekend, CNBC writes.
All the 100 largest cryptos, except one, fall on Monday morning.
Bitcoin has fallen 10 percent since Sunday and now costs $ 6769. It is the lowest since the beginning of April. The world's second largest crypto currency, Ethereum, is also falling significantly.
Bitcoin, however, was not one of the cryptocurrencies that hit the hacking. It was among other things the lesser known Pundi X, which is the most traded cryptocurrency on Coinrail.
Since the market started falling brisk night to sunday, 42 billion dollars, of the total market value of the cryptocurrency market, has been depleted.
Examining Coinbase and Bitstamp
Some of the case may also be due to an article from the Wall Street Journal that quoted unknown sources last Friday, saying that US authorities are examining possible price manipulation on the four major cryptobuses Bitstamp, Coinbase, Itbit and Kraken.
According to the newspaper, the authorities demand that the crypto exchanges hand over detailed transaction data.
The review comes six months after the CME derivatives exchange opened. At CME you can trade in futures contracts, as well as shop for where you think the price is about one month or two months. CME retrieves its prices from Bitstamp, Coinbase, Itbit and Kraken, and thus the manipulation of the four exchanges will affect the price of CME, which the government directly regulates.